I am trying to create a button that shows/hides a div. It seems relatively easy, but whenever I click this button, it just does a refresh, and when I keep clicking it, it hides most of my page. Here is what I have so far. Also, I dont know if it matters but I am using foundation for most of the css
application.js
$(function() {
$(document).foundation();
});
$(document).ready(function() {
$('#message_button').click(function() {
$("#messages").toggle();
});
});
_userindex.html
<div class="row">
<div class="small-12 columns new-button">
<%= link_to 'New Job', new_job_path, class: 'button' %>
</div>
</div>
<div class="section-container auto" data-section>
<section>
<p class="title" data-section-title>Active Jobs</p>
<div class="content" data-section-content>
<% if #active.present? %>
<ul>
<% #active.each do |job| %>
<li class='panel'>
<div class="row">
<div class="small-12 columns">
<div class="row">
<div class="large-6 columns">
<span id="location"><strong>location</strong>: <%= job.location %></span>
</div>
<div class="large-6 columns">
<span id="status"><strong>status</strong>: <%= job.status %></span>
</div>
</div>
<div class='light panel bottom'>
<strong>job: <%= link_to job.name, job %></strong><br>
<%= job.description %>
</div>
</div>
</div>
<div class="row job-buttons">
<div class="small-6 columns">
MESSAGES BUTTON -->>> <%= link_to 'messages', '', class: 'button small secondary', id: "message_button" %>
</div>
<div class="small-6 columns">
<%= link_to 'cancel', job, method: :delete, data: {confirm: 'Are you sure?'}, class: 'button small alert' %>
</div>
</div>
<br />
I WANT TO HIDE THIS ENTIRE DIV ---->>>> <div id="messages">
<div class="row">
<div class="small-12 columns">
<div class="panel">
<%= form_for(#message) do |f| %>
<%= f.label :body, "Description" %>
<%= f.text_area :body %>
<%= f.hidden_field :job_id, value: job.id %>
<%= f.submit 'Create message', class: 'button small secondary' %>
<% end %>
</div>
</div>
</div>
<% jobs_messages = job.messages %>
<% if jobs_messages.present? %>
<ul>
<% jobs_messages.each do |m| %>
<% if m.user_id.present? %>
<% user = m.user %>
<% else %>
<% user = m.runner %>
<% end %>
<li class='panel'>
<div class='row'>
<div class='small-12 columns'>
<p> From: <%= user.login %> </p>
<p> Body: <%= m.body %>
</div>
</div>
</li>
<% end %>
</ul>
<% else %>
<div class="empty panel">
<p>no messages at the moment</p>
</div>
<% end %>
</div>
</li>
<% end %>
</ul>
<% else %>
<div class="empty panel">
<p>no active jobs at the moment</p>
</div>
<% end %>
</div>
</section>
<section>
<p class="title" data-section-title>Completed Jobs</p>
<div class="content" data-section-content>
<% if #completed.present? %>
<% else %>
<div class="empty panel">
<p>no completed jobs yet</p>
</div>
<% end %>
</div>
</section>
</div>
I am trying to an $().click action to the link_to button with id "message_button". Whenever this button/link is clicked, I want it to show/hide the "messages" div.
I am new to jQuery, rails, and foundation, so I left most of the code just in case anything was important. But I marked the message_button and the message div to help you better find it.
2 problems:
It looks to me as though you have a bad case of the "multiple IDs"!
You are not preventing the default behaviour of the link. (so when you click it, the page refreshes or navigates away)
Problem #2 is easy: call preventDefault() (usage example below).
Problem #1 is a little trickier...
You are creating <li> content within a loop, inside each of those <li> tags you have elements with the IDs #messages and #message_button. Multiple instances of an ID on the same page is not allowed. If you want, you can use classes instead of ids as you can have multiple instances of a class.
However, switching from IDs to Classes won't fix your problem, as if you use classes you'll just be toggling ALL messages when any message button is clicked.
Referring to this question here, you can easily get the index of the loop in your rails template:
<% #active.each do |job, index| %>
Your template/html code here
<% end %>
This exposes a new variable, index which you can use to decorate each of your messages and buttons with an index value to then specify which message you wish to show.
Note: I'm not sure if this is the best approach, but this should work. It's been a while since I've used Rails, so there might be errors. I've included the code below just to demonstrate the possible solution:
application.js:
$(function() {
$(document).foundation();
});
$(document).ready(function() {
//NOTE that I am selecting on a class here
$('.message_button').click(function(e) {
//You also need to prevent the default behaviour of
//the link. That is why the page keeps refreshing.
e.preventDefault();
//get the index value I appended to this elements ID
var msgButtonIndex = $(this).attr("id").replace("message_button_","");
//select and toggle the respective message
$("#messages_" + msgButtonIndex).toggle();
});
});
_userindex.html:
<div class="row">
<div class="small-12 columns new-button">
<%= link_to 'New Job', new_job_path, class: 'button' %>
</div>
</div>
<div class="section-container auto" data-section>
<section>
<p class="title" data-section-title>Active Jobs</p>
<div class="content" data-section-content>
<% if #active.present? %>
<ul>
<% #active.each do |job,index| %>
<li class='panel'>
<div class="row">
<div class="small-12 columns">
<div class="row">
<div class="large-6 columns">
<span id="location"><strong>location</strong>: <%= job.location %></span>
</div>
<div class="large-6 columns">
<span id="status"><strong>status</strong>: <%= job.status %></span>
</div>
</div>
<div class='light panel bottom'>
<strong>job: <%= link_to job.name, job %></strong><br>
<%= job.description %>
</div>
</div>
</div>
<div class="row job-buttons">
<div class="small-6 columns">
<%# Adding a "message_button" class and a decorated "message_button_{index}" ID! %>
<%= link_to 'messages', '', class: 'button small secondary message_button', id: "message_button_" + index.to_s %>
</div>
<div class="small-6 columns">
<%= link_to 'cancel', job, method: :delete, data: {confirm: 'Are you sure?'}, class: 'button small alert' %>
</div>
</div>
<br />
<%# decorating this ID too %>
<div id="messages_<%= index.to_s %>">
<div class="row">
<div class="small-12 columns">
<div class="panel">
<%= form_for(#message) do |f| %>
<%= f.label :body, "Description" %>
<%= f.text_area :body %>
<%= f.hidden_field :job_id, value: job.id %>
<%= f.submit 'Create message', class: 'button small secondary' %>
<% end %>
</div>
</div>
</div>
<% jobs_messages = job.messages %>
<% if jobs_messages.present? %>
<ul>
<% jobs_messages.each do |m| %>
<% if m.user_id.present? %>
<% user = m.user %>
<% else %>
<% user = m.runner %>
<% end %>
<li class='panel'>
<div class='row'>
<div class='small-12 columns'>
<p> From: <%= user.login %> </p>
<p> Body: <%= m.body %>
</div>
</div>
</li>
<% end %>
</ul>
<% else %>
<div class="empty panel">
<p>no messages at the moment</p>
</div>
<% end %>
</div>
</li>
<% end %>
</ul>
<% else %>
<div class="empty panel">
<p>no active jobs at the moment</p>
</div>
<% end %>
</div>
</section>
<section>
<p class="title" data-section-title>Completed Jobs</p>
<div class="content" data-section-content>
<% if #completed.present? %>
<% else %>
<div class="empty panel">
<p>no completed jobs yet</p>
</div>
<% end %>
</div>
</section>
</div>
Related
From my homepage I go to the register page by clicking "register" button, I will end up by a registration form. There, if mandatory fields are not filled out correctly, a modal would pop up and list the errors. Problem is, that the first try to register causes the modal like this :
However, if I refresh the page, modal works perfectly as supposed to. This is only happening when redirected through a register-button from a home page.
Here is my code: devise/registrations/new.html.erb
<div class="container">
<div id="myModal" class="modal fade" role="dialog">
<div class="modal-content">
<div class="modal-body">
<button type="button" class="btn btn-secondary dismiss-close" data-dismiss="modal">Close</button>
</div>
</div>
</div>
<div class="center-items-register">
<%= form_for(resource, as: resource_name, url: registration_path(resource_name), remote: true) do |f| %>
<%= render "devise/shared/error_messages" %>
<div class="row 1">
<div class="column">
<div class="field">
<%= f.label :first_name, class: 'required' %><br />
<%= f.text_field :first_name, class: 'form-control' %>
</div>
</div>
<div class="column">
<div class="field">
<%= f.label :last_name, class: 'required' %><br />
<%= f.text_field :last_name, class: 'form-control' %>
</div>
</div>
</div>
<div class="row 2">
<div class="column">
<div class="field email">
<%= f.label :email, class: 'required' %><br />
<%= f.email_field :email, autofocus: true, autocomplete: "email", class: 'form-control' %>
</div>
</div>
</div>
<div class="row 3">
<div class="column">
<div class="field">
<%= f.label :password, class: 'required' %>
<% if #minimum_password_length %>
<em>(<%= #minimum_password_length %> characters minimum)</em>
<% end %>
<%= f.password_field :password, autocomplete: "new-password", class: 'form-control' %><br />
</div>
</div>
<div class="column">
<div class="field">
<%= f.label :password_confirmation, class: 'required' %><br />
<%= f.password_field :password_confirmation, autocomplete: "new-password", class: 'form-control' %>
</div>
</div>
</div>
<div class="row buttons">
<div class="column buttons">
<div class="actions">
<%= f.submit "Sign up", class: 'btn form margin', data: { toggle: "modal", target: "#myModal" } %>
</div>
</div>
<% end %>
<div class="column buttons">
<% if devise_mapping.recoverable? && controller_name != 'passwords' && controller_name != 'registrations' %>
<%= link_to "Forgot your password?", new_password_path(resource_name) %><br />
<% end %>
<%= link_to fa_icon("facebook", text: "Sign up with facebook"), user_facebook_omniauth_authorize_path, class: "btn btn-lg btn-social btn-facebook" %>
</div>
</div>
</div>
</div>
Here is devise/registrations/failed_modal.js.erb
var errors = <%= error_messages.to_json.html_safe %>;
var errorForm = document.querySelector('#myModal');
var modalBody = errorForm.querySelector('.modal-body');
var alertElement = document.createElement('div')
alertElement.id = "alertElement";
alertElement.classList.add('alert');
alertElement.classList.add('alert-danger');
modalBody.appendChild(alertElement);
var errList = document.createElement('ul');
alertElement.appendChild(errList)
errors.forEach(function(error) {
var errElement = document.createElement('li');
errElement.innerText = error;
errList.appendChild(errElement)
})
errorForm.style.display = "block";
And assets/javascripts/new.js
document.addEventListener("DOMContentLoaded", function() {
var modal = document.getElementById("myModal");
if (!modal) return;
var close = modal.querySelector(".dismiss-close");
var modalBody = modal.querySelector(".modal-body");
var modalContent = modal.querySelector(".modal-content");
window.onclick = function(event) {
if (event.target == modal) {
$('#myModal').modal('hide');
$('body').removeClass('modal-open');
$('.modal-backdrop').remove();
modalBody.removeChild(modalBody.querySelector('#alertElement'));
}
}
function closeModal() {
$('#myModal').modal('hide');
$('body').removeClass('modal-open');
$('.modal-backdrop').remove();
modalBody.removeChild(modalBody.querySelector('#alertElement'));
}
modalContent.addEventListener("click", function(event) {
event.stopPropagation();
});
close.addEventListener("click", closeModal);
modal.addEventListener("click", closeModal);
});
Before I had the problem, that "close" button in my modal disappeared : here. Also backround didn't disappear, this is why I added this jQuery bit in my code:
function closeModal() {
$('#myModal').modal('hide');
$('body').removeClass('modal-open');
$('.modal-backdrop').remove();
In the console I only see the error related to autocomplete with "Algolia Places", but it should't even be here, as I actually use this autocomplete function on the next page. Here is my application.html.erb just in case. Thanks!
<!DOCTYPE html>
<html>
<head>
<title>Neigbornow</title>
<%= csrf_meta_tags %>
<%= csp_meta_tag %>
<%= yield :meta %>
<%= yield %>
<%= javascript_include_tag 'application' %>
<%= javascript_pack_tag 'application' %>
<%= javascript_pack_tag 'autocomplete' %>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
<%= yield :css %>
</head>
<body>
<% if #user.nil? %>
<%= render 'layouts/header' %>
<% elsif user_signed_in? && #user.street.nil? %>
<%= render partial: "layouts/header_address" %>
<% else %>
<%= render 'layouts/header_rest' %>
<% end %>
<%= render 'layouts/flash' %>
<div id="main">
</div>
</body>
</html>
Working on Rails 5,
I am trying to render nested form (same model) in each dynamic tab,
but now the same fomr is rendering in the all the tabs,how to render different fieldset in different tabs
views/material_masters/new.html.erb
<div class="col-md-12">
<div class="panel panel-default">
<div class="panel-body">
<div class="tabbable-line">
<ul class="nav nav-tabs ">
<% #part_locations.each.with_index do |l, i| %>
<li <%= 'class="active"' if i == 0 %>>
<%= l.location_name %>
</li>
<% end %>
<li><button type="button" class="fa fa-plus btn btn-primary btn-xs" data-toggle="modal" data-target="#myModal"></button> </li>
</ul>
<div class="tab-content">
<% #part_locations.each.with_index do |l, i| %>
<div class="tab-pane <%= 'active' if i == 0 %>" id="<%= l.location_name %>">
<%= f.fields_for :material_locations do |builder| %>
<%= render 'material_location_fields', :f => builder %>
<% end %>
<%= link_to_add_association "Add", f, :material_locations, class: "btn btn-primary btn-xs" %>
</div>
<% end %>
</div>
</div>
</div>
</div>
</div>
views/material_masters/_material_location_fields.html.erb
<fieldset>
<div class= "nested-fields">
<div class="col-sm-3">
<%= f.label :material_location, "Material Location" %>
<%= f.text_field :mat_location,class:"form-control",required: true %>
</div>
<div class="col-sm-3">
<%= f.label :opening_stock %>
<%= f.text_field :opening_stock ,class:"form-control",onKeyPress:"return NumbersOnly(this, event,true)",required: true %>
</div>
<div class="col-sm-3">
<%= f.label :reorder_qty %>
<%= f.text_field :reorder_qty, class:"form-control",onKeyPress:"return NumbersOnly(this, event,true)",required:true %>
</div>
</div>
</fieldset>
model/material_master.rb
class MaterialMaster < ApplicationRecord
has_many :material_locations
accepts_nested_attributes_for :material_locations,allow_destroy: true
end
https://i.stack.imgur.com/b6Ssr.png
https://i.stack.imgur.com/69h3X.png
Hear i am trying to add location in bangalore tab i am addling mumbai location and in delhi tab i want to add one more material location but the same form is coming in the next tab
What is obviously on your code is that you have space here in a line:
<%= l.location_name %>
as you can note l .location_name can you remove the space?
I have a Rails 5, ruby 2.4.0, bootstrap 4 alpha 6 app using the selectize.js plugin.
What I am trying to do is display device info based on the selected item in the select box.
Currently, When the page loads the div is hidden as it should be and the select box is displayed (as it should be) but when I select anything other than the first select option, it wont change the device in the div.
I am a java / ajax noob and am lost for a solution. Any assistance would be greatly appreciated!
my select-box:
<select class="form-control div-toggle" id="select-device" data-target=".device-names">
<option>Select Device</option>
<% #devices.each do |device| %>
<option value="<%= device.id %>" show=".<%= device.device_name %>"> <%= device.device_name.titleize %></option>
<% end %>
</select>
My Div to be rendered and displayed for each device when its selected:
<div class="container device-names">
<% #devices.each do |device_div| %>
<div class="<%= device_div.id %> invisible" id="result">
<div class="phoneDetailsContainer">
<div class="row">
<div class="col-sm-12">
<center><h5 class="deviceHeader"><%= device_div.manufacturer.name.titleize %> | <%= device_div.device_name.upcase %></h5></center>
</div>
</div>
<div class="row">
<div class="col-md-4 hidden-sm-down"></div>
<div class="col-sm-12 col-md-4" id="deviceDivImageContainer">
<center>
<% if device_div.image.present? %>
<%= image_tag device_div.image_url(:thumb), :class => "deviceImage" %>
<% else %>
<% end %>
</center>
</div>
<div class="col-md-4 hidden-sm-down"></div>
</div>
<div class="row">
<div class="col-sm-12 col-md-4"></div>
<div class="col-sm-12 col-md-4">
<center>
<span class="proceedDisclaimer">By clicking this button you agree that this is the device in your possession</span>
<%= link_to "Proceed to Carrier Selection", manufacturer_device_path(#manufacturer, device_div), class: 'btn btn-outline-primary proceedButton', :id => "proceed" %>
</center>
</div>
<div class="col-sm-12 col-md-4"></div>
</div>
</div>
</div>
<% end %>
</div>
my javaScript to call the div when the item is selected:
<script type="text/javascript">
var ready = function () {
// add code here
$('#result').hide();
$('#select-device').selectize({
});
$('#select-device').change(function(){
$('#result').show().removeClass('invisible')
});
//end code here
}
$(document).ready(ready);
$(document).on('page:load', ready);
$(document).on('turbolinks:load', ready);
</script>
Any assistance here would be greatly appreciated! please let me know if further info is required!
A fair warning. I am NOT much knowledgeable on ruby and thus my answer might be bit buggy on ruby side.
HTML
<div class="container device-names">
<% #devices.each do |device_div| %>
<!-- first id change -->
<div class="invisible" id="result<%= device_div.id %> ">
<div class="phoneDetailsContainer">
<div class="row">
<div class="col-sm-12">
<center><h5 class="deviceHeader"><%= device_div.manufacturer.name.titleize %> | <%= device_div.device_name.upcase %></h5></center>
</div>
</div>
<div class="row">
<div class="col-md-4 hidden-sm-down"></div>
<!-- second id change -->
<div class="col-sm-12 col-md-4" id="deviceDivImageContainer<%= device_div.id %> ">
<center>
<% if device_div.image.present? %>
<%= image_tag device_div.image_url(:thumb), :class => "deviceImage" %>
<% else %>
<% end %>
</center>
</div>
<div class="col-md-4 hidden-sm-down"></div>
</div>
<div class="row">
<div class="col-sm-12 col-md-4"></div>
<div class="col-sm-12 col-md-4">
<center>
<span class="proceedDisclaimer">By clicking this button you agree that this is the device in your possession</span>
<!-- third id change. Not knowing ruby i cannot help here -->
<%= link_to "Proceed to Carrier Selection", manufacturer_device_path(#manufacturer, device_div), class: 'btn btn-outline-primary proceedButton', :id => "proceed" %>
</center>
</div>
<div class="col-sm-12 col-md-4"></div>
</div>
</div>
</div>
<% end %>
</div>
Javascript
<script type="text/javascript">
$(document).ready(function(){
//result.hide is not wanted as elements are already having class invisible
//Assuming that the dropdown values have same values as element ids
$('#select-device').change(function(){
$('#'+$('#select-device').val()).removeClass('invisible')
});
});
</script>
Right now, your jQuery selector for $('#result') is going to return an array of all the elements which match your selector. You want to find the one which has the class of the id of the item. You can pass the target into the function like this
$('#select-device').change(function(e){
id = $(e.target).val()
$('.' + id).removeClass('hidden')
}
I have the following cart view that i addapted with bootstrap.
<div class="row line_item">
<div class="col-md-4 cart-item-image" data-hook="cart_item_image">
<% if variant.images.length == 0 %>
<%= link_to small_image(variant.product), variant.product %>
<% else %>
<%= link_to image_tag(variant.images.first.attachment.url(:product)), variant.product %>
<% end %>
</div>
<div class="col-md-4 cart-item-image" data-hook="cart_item_description">
<h4><%= link_to line_item.name, product_path(variant.product) %></h4>
<%= variant.options_text %>
<% if line_item.insufficient_stock? %>
<span class="out-of-stock">
<%= Spree.t(:out_of_stock) %> <br />
</span>
<% end %>
<span class="line-item-description" data-hook="line_item_description">
<%= line_item_description_text(line_item.description) %>
</span>
</div>
<div class="col-md-1 cart-item-price" data-hook="cart_item_price">
<%= line_item.single_money.to_html %>
</div>
<div class="col-md-1 cart-item-quantity" data-hook="cart_item_quantity" valign="center">
<%= item_form.number_field :quantity, min: 0, class: "form-control line_item_quantity", size: 5 %>
</div>
<div class="col-md-2">
<div class="cart-item-total" data-hook="cart_item_total">
<%= line_item.display_amount.to_html unless line_item.quantity.nil? %>
</div>
<div class="cart-item-delete" data-hook="cart_item_delete">
<%= link_to content_tag(:span, '', class: 'glyphicon glyphicon-minus-sign'), '#', class: 'delete', id: "delete_#{dom_id(line_item)}" %>
</div>
</div>
</div>
and the following coffeescript that goes along with it
Spree.ready ($) ->
if ($ 'form#update-cart').is('*')
($ 'form#update-cart a.delete').show().one 'click', ->
($ this).parents('.line-item').first().find('input.line_item_quantity').val 0
($ this).parents('form').first().submit()
false
($ 'form#update-cart').submit ->
($ 'form#update-cart #update-button').attr('disabled', true)
Now the delete button does not work with this cart html ( while it is working with the original view a following)
<div style="margin-top: 35px;">
<div class="row">
<tr class="line-item">
<td class="col-md-4 cart-item-image" data-hook="cart_item_image">
<% if variant.images.length == 0 %>
<%= link_to small_image(variant.product), variant.product %>
<% else %>
<%= link_to image_tag(variant.images.first.attachment.url(:small)), variant.product %>
<% end %>
</td>
<td class="col-md-4 cart-item-description" data-hook="cart_item_description">
<h4><%= link_to line_item.name, product_path(variant.product) %></h4>
<%= variant.options_text %>
<% if line_item.insufficient_stock? %>
<span class="out-of-stock">
<%= Spree.t(:out_of_stock) %> <br />
</span>
<% end %>
<span class="line-item-description" data-hook="line_item_description">
<%= line_item_description_text(line_item.description) %>
</span>
</td>
<td class="col-md-1 lead text-primary cart-item-price" data-hook="cart_item_price">
<%= line_item.single_money.to_html %>
</td>
<td class="col-md-1 cart-item-quantity" data-hook="cart_item_quantity" valign="center">
<%= item_form.number_field :quantity, min: 0, class: "form-control line_item_quantity", size: 5 %>
</td>
<td class="col-md-1 lead text-primary cart-item-total" data-hook="cart_item_total">
<%= line_item.display_amount.to_html unless line_item.quantity.nil? %>
</td>
<td class="col-md-1 cart-item-delete" data-hook="cart_item_delete">
<%= link_to content_tag(:span, '', class: 'glyphicon glyphicon-minus-sign'), '#', class: 'delete', id: "delete_#{dom_id(line_item)}" %>
</td>
</tr>
</div>
</div>
It seems to me that the coffeescript should work in both cases!
What am i missing after i modify the view ? It seems to me that the coffeescript should perform the search in both cases...
It doesn't look like you've done anything wrong when it comes to keeping the markup for the javascript the same. My guess would be that Spree.ready ($) -> isn't actually firing. That could be caused by you removing javascript files during your view customization by accident. You should try checking your web developer console to see if there are any javascript errors like Spree not being defined or something like that.
I want make <div class="row">.
if <div class="col-md-4"> is three or more,
I want make <div class="row">.
Because I use twitter bootstrap grid view.
My View is
<% #account_products.order(created_at: :desc).each do |product| %>
<div>
<div class="col-md-4">
<div = "icons-right">
<span class = "icons-right">
<%= link_to image_tag("like.png", size: "30"),
line_items_path(product_id: product),
:class => "cart_image", method: :post %>
<button class="btn btn-default btn-sm dropdown-toggle" type="button" data-toggle="dropdown" aria-expanded="false">
<span class="caret"></span>
</button>
<ul class="dropdown-menu" role="menu">
<!-- edit_product_path, product.id로 했으나 id값을 전달하지 않았다. -> 전달은 매개변수로 ! -->
<li role="presentation"><%= link_to "edit", edit_product_path(product.id) %></li>
<li role="presentation"><%= link_to "destory", product, method: :delete %></li>
</ul>
</span>
</div>
<div class="fixed-size-image">
<a href = "<%= product.image_url %>" target = "blank" >
<%= image_tag(product.item.url) if product.item? %>
</a>
</div>
<div class = "brand">
<%= product.brand %>
</div>
<div class = "description">
<%= product.title %>
</div>
<div class = "price">
<%= product.price %>
</div>
<!-- line_item_path -> line_items_path class="btn btn-primary btn-lg active -->
<!-- like.png -->
</div>
</div>
<% end %>
If I understand correctly, you're trying to output a <div class="row"> for every three columns, is that right?
There are two ways to do it:
<% #account_products.order(created_at: :desc).each_with_index do |product, i| %>
<% if i%3 == 0 %>
<div class="row">
<% end %>
... (The rest of your code)
<% if i%3 == 0 %>
</div>
<% end %>
<% end %>
Or:
<% #account_products.order(created_at: :desc).in_groups_of(3) do |product_group| %>
<div class="row">
<% product_group.compact.each do |product| %>
... (The rest of your code)
<% end %>
</div>
<% end %>
---edit---
As requested, jQuery solution:
var a = $('.col-md-4');
while(a.length) {
$(a.splice(0,3)).wrapAll("<div class='row' />")
}